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Katech Engineering LLC - LS & LT Valve Springs, Retainers & Seats
Since 1977, Katech Engineering has developed high-performance GM valve springs engineered to deliver precise valvetrain control, durability, and reliability under extreme engine speeds and loads. Designed for GM LS and LT platforms, our valve springs support aggressive camshaft profiles and high-RPM operation for street, track, and professional motorsports applications.
All Katech GM valve springs are engineered, tested, and quality-controlled in-house at our Clinton Township, Michigan facility. Developed using race-proven valvetrain dynamics and validation methods, each spring is matched for seat pressure, open pressure, and long-term durability to ensure consistent performance.
Built in the USA. Proven on the track.
Browse LS & LT Valve Springs, Retainers & Seats Products
Items 1-23 of 23
In Stock
Description: For Most GM LS & LS7 Heads
Item #: KAT-A7753-TI
Condition:
New
Price: $839.99
In Stock
Description: For Most GM LS Heads | DOES NOT FIT NOT LS9 Heads
Item #: KAT-A7753-TS
Condition:
New
Price: $787.99
Description: For Most LS Heads| DOES NOT FIT LS9 Heads
Item #: KAT-A7919-TS
Condition:
New
Price: $787.99
In Stock
Description: For LT1 Heads
Item #: KAT-A7754-TI
Condition:
New
Price: $866.99
Description: For LT1 Heads
Item #: KAT-A7754-TS
Condition:
New
Price: $813.99
Description: Katech PSI LT1 Dual Valve Spring Kit
Item #: KAT-A7920-TS
Condition:
New
Price: $787.99
In Stock
Description: For LT4 Heads
Item #: KAT-A7755-TI
Condition:
New
Price: $866.99
In Stock
Description: For LT4 Heads
Item #: KAT-A7755-TS
Condition:
New
Price: $813.99
Description: Katech PSI LT4 Dual Valve Spring Kit
Item #: KAT-A7921-TS
Condition:
New
Price: $787.99
In Stock
Description: High lift valve springs for all LS & LT engines.
Item #: PSI-LS1511
Condition:
New
Price: $22.99
In Stock
Description: High lift valve springs for all LS & LT engines.
Item #: PSI-LS1516
Condition:
New
Price: $24.99
In Stock
Description: BTR PLATINUM LT4 DUAL SPRING KIT with Titanium retainers - .660" LIFT - SK008
Item #: BTR-SK008
Condition:
New
Price: $369.99
In Stock
Description: BTR PLATINUM LS DUAL SPRING KIT with steel retainers - .660" LIFT - SK001
Item #: BTR-SK001
Condition:
New
Price: $319.99
In Stock
Description: BTR PLATINUM LS9 DUAL SPRING KIT with steel retainers - .660" LIFT - SK006
Item #: BTR-SK006
Condition:
New
Price: $369.99
In Stock
Description: BTR PLATINUM LT1 DUAL SPRING KIT with Titanium retainers - .660" LIFT - SK007
Item #: BTR-SK007/0560/BB
Condition:
New
Price: $369.99
In Stock
Description: For LS2, LS3, and LS6 Engines
Item #: GMP-10166344
Condition:
New
Price: $7.99
In Stock
Description: For LS heads with dual springs and OEM or most bronze guides
Item #: KAT-7536
Condition:
New
Price: $8.99
In Stock
Description: Designed for use with PSI-LS1512 or PSI-LS1513 dual valve springs
Item #: KAT-7715
Condition:
New
Price: $16.99
In Stock
Description: For PSI LS1511 spring
Item #: KAT-4678
Condition:
New
Price: $19.99
In Stock
Description: For LS & LT style heads with PSI springs and OEM guides
Item #: KAT-6687
Condition:
New
Price: $8.99
In Stock
Description: For LT4 heads
Item #: KAT-6931
Condition:
New
Price: $8.99
In Stock
Description: For LT4 heads
Item #: KAT-6928
Condition:
New
Price: $19.99
In Stock
Description: For LS heads
Item #: KAT-6749
Condition:
New
Price: $8.99
Items 1-23 of 23